TAKIYAMA Takeshi

写真a

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Title

Associate Professor

Laboratory location

Sugimoto Campus

Degree 【 display / non-display

  •  -  Doctor of Engineering

Research Areas 【 display / non-display

Intelligent Mechanics and Machine System, Thermal engineering, Optimizing control for power train of automobile.

Research Career 【 display / non-display

  • Optimizing Control ot Exhaust Gas Emissun Using A/F confnol

    (Collaboration in Organization)

    Keyword in research subject:  Gasoline Ensie, Air fuel ratio, Exhaust Gas Purification

  • Optimization of Fuel Consumption of Engine-CVT consolidated control

    (Collaboration in Organization)

    Keyword in research subject:  Gasoline Engine, Continuously Variable Transmission, Fuel Consumption

Association Memberships 【 display / non-display

  • THE JAPAN SOCIETY OF MECHANICAL ENGINEERS

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Mechanical and Physical Engineering Course   Associate Professor  

Graduate School 【 display / non-display

  •  
    -
    1986

    Osaka City University  Graduate School, Division of Engineering 

Graduating School 【 display / non-display

  •  
    -
    1984

    Osaka City University   Faculty of Engineering  

 

Published Papers 【 display / non-display

  • Target trajectory generation using clothoid curve and vehicle control for obstacle avoidance of automated driving

    TAKIYAMA Takeshi, FUJITA Junichi

    The Japan Society of Mechanical Engineers, Transactions of the JSME (in Japanese)  86 ( 883 )  2020.03  [Refereed]

     View Summary

    <p>In order to avoid an obstacle automatically for an automated vehicle, this paper investigated a method to generate a target trajectory using a clothoid curve and to control the vehicle. Although a mathematical constraints or a potential methods are often used to generate the target trajectory for an obstacle avoidance, it requires trial and error and experience, and it is also necessary to consider the vehicle's drivability. The clothoid curve is often used for a road curve design, therefore, the curve is considered to be suitable for the characteristics of a vehicle driving. Although a clothoid curve passing through a target point is necessary for obstacle avoidance, such clothoid curve is often obtained by trial and error. Therefore, the numerical analyses were executed to obtain the characteristics of the clothoid curve, then, the method was investigated to generate the clothoid curve to pass through the target point. Furthermore, a method to generate a target avoidance trajectory was also investigated expanding the generated clothoid curve based on the traveling characteristics of a vehicle. For driving on the target trajectory satisfactory, both the position and turning angle of the vehicle are controlled by means of a steering manuplation. The controller was constructed using a 1-input 2-output system, therefore, it is very difficult to satisfy both value at the same time. Furthermore, it is also necessary to consider a nonholonomic characteristics of the vehicle. From these point, this paper investigated the optimal control using nonlinear least square probrem sequential quadratic programming(NLSSQP) by means of the time behaviour of input and output in the evaluation value. Well expected results are obtained and shown in the simulation and the experiment.</p>

    DOI CiNii

  • フィードフォワード制御系の適応化による過渡時エンジン回転速度制御の精度向上の検討

    瀧山 武

    公益社団法人 自動車技術会 自動車技術会論文集  50 ( 3 ) 963 - 969 2019  [Refereed]

     View Summary

    内燃機関のさらなる高効率化のために、過渡運転状態での使用頻度が多い自動車用ガソリン機関を、パラメータ変化しても精度良く制御することが望まれる。そこで速応性の優れたフィードフォワード制御系において、非線形計画法をオンライン実施して適応化を行い、過渡時のエンジン回転速度制御の精度向上を検討した。

    DOI CiNii

  • Investigation on adaptation for speed control system of gasoline engine using the design method of servo system to attain the given settling time

    TAKIYAMA Takeshi, YOSHIKAWA Tatsuya, NOH Jinto, OHTA Yuzo

    The Japan Society of Mechanical Engineers, Transactions of the JSME (in Japanese)  2018  [Refereed]

     View Summary

    <p>In order to satisfy the setting settling time and overshoot, a new design method of controller was developed using a model parameter which was approximated as a second-order lag-time system. Then, an effectiveness was experimentally demonstrated as an engine speed controller. In order to operate wide conditions, however, an adaptive ability was required for parameter change. This paper investigated regarding an on-line execution of non-linear least square problem to obtain the changed controlled plant model parameter. A simulation study were carried out and a suitable adaption were experimentally demonstrated.</p>

    DOI CiNii

  • PI and Adaptive Model Matching Control System that Satisfies the Setting Settling Time, application to engine speed control

    Takeshi Takiyama, Tatsuya Yoshikawa, Jinto Noh, Yuzo Ohta

    IFAC Papers OnLine, 3rd IFAC Conference on Advances in Proportional-Integral-Derivative Control PID 2018  51 ( 4 ) 394 - 399 2018  [Refereed]

  • Investigation on Applying Model Predictive Control for Air Fuel Ratio Control in Transient State

    Takiyama Takeshi, Higashino Atsuhiro

    Society of Automotive Engineers of Japan, Transactions of the Society of Automotive Engineers of Japan  48 ( 3 ) 757 - 762 2017  [Refereed]

     View Summary

    For improvement of fuel economy of a gasoline engine, EGR usage or stop-start sequence are increasing. Under any condition, a precise control of an air fuel ratio(AFR) is required to optimize the purification efficiency of an exhaust gas. Recently, a model predictive control(MPC) using a nonlinear model was paid attention for an accurate control. This paper experimentally investigated an application of MPC using a linear model, but it has two inputs for control and disturbance. On account of predicting the disturbance effect successfully, AFR control using MPC satisfied good performance with some robustness.

    DOI CiNii

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Conference Activities & Talks 【 display / non-display

  • Autonomous Vehicle Control for Avoiding Obstacle using Clothoid Trajectory and NLSSQP

    Fujita Junichi, Takiyama Takeshi

    2018.11 

  • PI and Adaptive Model Matching Control System that Satisfies the Setting Settling Time, application to engine speed control

    Takeshi Takiyama, Tatsuya Yoshikawa, Jinto Noh, Yuzo Ohta

    IFAC Papers OnLine, 3rd IFAC Conference on Advances in Proportional-Integral-Derivative Control PID 2018  2018.05 

  • Investigation on Adaptation for Speed Control System of Gasoline Engine using the Design Method of Servo System to Attain the Given Settling Time

    Takiyama Takeshi, Yoshikawa Tatsuya, Noh Jinto, Ohta Yuzo

    The Japan Joint Automatic Control Conference, Proceedings of the Japan Joint Automatic Control Conference  2017.11 

  • Experimental Investigation about Avoidance Area Management for Obstacle Avoidance of Autonomous Vehicle using Model Predictive Control

    2016.10 

  • Investigation on Applying Model Predictive Control for Air Fuel Ratio Control in Transient State

    2016.05 

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